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Next: 2000 323i 15" wheels on 1998 328is?
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External
Since: Apr 11, 2005
Posts: 21
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(Msg. 1) Posted: Thu Nov 09, 2006 8:23 am
Post subject: Vanos not working?
Archived from groups: alt>autos>bmw (more info?)
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Hi
My 1995 328 has been very difficult to pull away with ever since I got it
two years ago. You need to get the revs up to about 1500 to keep it from
stalling. My wife had it stall with her 3 times yesterday before she
managed to pull away and she drives a 1996 316 daily which she never stalls.
So I am statring to believe that this is not driver related.
I'm suspecting that the Vanos does not work on the 328, 'cause it would
often idle rough. Yet from 2500 RPM upwards it pulls like a train, even
when towing a 1 tonne caravan.
Is there anything I can do to check whether the Vanos is working or not.
Apart from the mechanism being broken, could there be a vacuum hose or
something similar that is blocked that could cause the Vanos to malfunction?
The car has only done 160,000km or 100,000 miles, full service history and
is still like new otherwise.
Thanks in advance for any advice
MW |
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External
Since: Mar 06, 2005
Posts: 105
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(Msg. 2) Posted: Thu Nov 09, 2006 8:23 am
Post subject: Re: Vanos not working? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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On Nov 9, 1:23 am, "MW de Jager" wrote:
> Hi
>
> My 1995 328 has been very difficult to pull away with ever since I got it
> two years ago. You need to get the revs up to about 1500 to keep it from
> stalling. My wife had it stall with her 3 times yesterday before she
> managed to pull away and she drives a 1996 316 daily which she never stalls.
> So I am statring to believe that this is not driver related.
>
> I'm suspecting that the Vanos does not work on the 328, 'cause it would
> often idle rough. Yet from 2500 RPM upwards it pulls like a train, even
> when towing a 1 tonne caravan.
>
> Is there anything I can do to check whether the Vanos is working or not.
> Apart from the mechanism being broken, could there be a vacuum hose or
> something similar that is blocked that could cause the Vanos to malfunction?
> The car has only done 160,000km or 100,000 miles, full service history and
> is still like new otherwise.
>
> Thanks in advance for any advice
>
> MW
The VANOS is actuated by the engine oil pressure. You'll have to pull
the valva cover to see. My guess is it is working unless the valve
train is all sludged up.
As to why the car is stalling, someone else my offer a better opinion
on it. |
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External
Since: Mar 06, 2005
Posts: 105
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(Msg. 3) Posted: Thu Nov 09, 2006 8:23 am
Post subject: Re: Vanos not working? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
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On Nov 9, 1:23 am, "MW de Jager" wrote:
> Hi
>
> My 1995 328 has been very difficult to pull away with ever since I got it
> two years ago. You need to get the revs up to about 1500 to keep it from
> stalling. My wife had it stall with her 3 times yesterday before she
> managed to pull away and she drives a 1996 316 daily which she never stalls.
> So I am statring to believe that this is not driver related.
>
> I'm suspecting that the Vanos does not work on the 328, 'cause it would
> often idle rough. Yet from 2500 RPM upwards it pulls like a train, even
> when towing a 1 tonne caravan.
>
> Is there anything I can do to check whether the Vanos is working or not.
> Apart from the mechanism being broken, could there be a vacuum hose or
> something similar that is blocked that could cause the Vanos to malfunction?
> The car has only done 160,000km or 100,000 miles, full service history and
> is still like new otherwise.
>
> Thanks in advance for any advice
>
> MW
The VANOS is actuated by the engine oil pressure. You'll have to pull
the valva cover to see. My guess is it is working unless the valve
train is all sludged up.
As to why the car is stalling, someone else my offer a better opinion
on it. >> Stay informed about: Vanos not working? |
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External
Since: Mar 06, 2005
Posts: 105
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(Msg. 4) Posted: Thu Nov 09, 2006 8:23 am
Post subject: Re: Vanos not working? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
On Nov 9, 1:23 am, "MW de Jager" wrote:
> Hi
>
> My 1995 328 has been very difficult to pull away with ever since I got it
> two years ago. You need to get the revs up to about 1500 to keep it from
> stalling. My wife had it stall with her 3 times yesterday before she
> managed to pull away and she drives a 1996 316 daily which she never stalls.
> So I am statring to believe that this is not driver related.
>
> I'm suspecting that the Vanos does not work on the 328, 'cause it would
> often idle rough. Yet from 2500 RPM upwards it pulls like a train, even
> when towing a 1 tonne caravan.
>
> Is there anything I can do to check whether the Vanos is working or not.
> Apart from the mechanism being broken, could there be a vacuum hose or
> something similar that is blocked that could cause the Vanos to malfunction?
> The car has only done 160,000km or 100,000 miles, full service history and
> is still like new otherwise.
>
> Thanks in advance for any advice
>
> MW
The VANOS is actuated by the engine oil pressure. You'll have to pull
the valva cover to see. My guess is it is working unless the valve
train is all sludged up.
As to why the car is stalling, someone else my offer a better opinion
on it. >> Stay informed about: Vanos not working? |
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External
Since: Mar 06, 2005
Posts: 105
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(Msg. 5) Posted: Thu Nov 09, 2006 8:23 am
Post subject: Re: Vanos not working? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
On Nov 9, 1:23 am, "MW de Jager" wrote:
> Hi
>
> My 1995 328 has been very difficult to pull away with ever since I got it
> two years ago. You need to get the revs up to about 1500 to keep it from
> stalling. My wife had it stall with her 3 times yesterday before she
> managed to pull away and she drives a 1996 316 daily which she never stalls.
> So I am statring to believe that this is not driver related.
>
> I'm suspecting that the Vanos does not work on the 328, 'cause it would
> often idle rough. Yet from 2500 RPM upwards it pulls like a train, even
> when towing a 1 tonne caravan.
>
> Is there anything I can do to check whether the Vanos is working or not.
> Apart from the mechanism being broken, could there be a vacuum hose or
> something similar that is blocked that could cause the Vanos to malfunction?
> The car has only done 160,000km or 100,000 miles, full service history and
> is still like new otherwise.
>
> Thanks in advance for any advice
>
> MW
The VANOS is actuated by the engine oil pressure. You'll have to pull
the valva cover to see. My guess is it is working unless the valve
train is all sludged up.
As to why the car is stalling, someone else my offer a better opinion
on it. >> Stay informed about: Vanos not working? |
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| Back to top |
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External
Since: Dec 28, 2005
Posts: 386
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(Msg. 6) Posted: Thu Nov 09, 2006 10:39 am
Post subject: Re: Vanos not working? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
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MW de Jager wrote:
> Hi
>
> My 1995 328 has been very difficult to pull away with ever since I got it
> two years ago. You need to get the revs up to about 1500 to keep it from
> stalling. My wife had it stall with her 3 times yesterday before she
> managed to pull away and she drives a 1996 316 daily which she never stalls.
> So I am statring to believe that this is not driver related.
>
> I'm suspecting that the Vanos does not work on the 328, 'cause it would
> often idle rough. Yet from 2500 RPM upwards it pulls like a train, even
> when towing a 1 tonne caravan.
>
> Is there anything I can do to check whether the Vanos is working or not.
> Apart from the mechanism being broken, could there be a vacuum hose or
> something similar that is blocked that could cause the Vanos to malfunction?
> The car has only done 160,000km or 100,000 miles, full service history and
> is still like new otherwise.
>
> Thanks in advance for any advice
>
> MW
>
>
There is a solenoid that is actuated by the car's ECU. That solenoid
opens and closes a valve that routes oil pressure to the VANOS actuator,
which is the mecanical device that slides the helical gears on the
camshaft and cam sprocket. This is how the cam gets advanced,
There is an SI bulletin that applies to all M52 engines for this
problem. It is "SI 11 09 98, Subject: VANOS Valve Mechanically Jamming"
If you send me an email offline I will email you back a pdf copy of that
SI bulletin. You will have to un-mung my email address first. Oh and
let me know here if you've done that so I look out for your mail, as
that email account is a spam trap.
--
-Fred W >> Stay informed about: Vanos not working? |
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External
Since: Dec 28, 2005
Posts: 386
|
(Msg. 7) Posted: Thu Nov 09, 2006 10:39 am
Post subject: Re: Vanos not working? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
MW de Jager wrote:
> Hi
>
> My 1995 328 has been very difficult to pull away with ever since I got it
> two years ago. You need to get the revs up to about 1500 to keep it from
> stalling. My wife had it stall with her 3 times yesterday before she
> managed to pull away and she drives a 1996 316 daily which she never stalls.
> So I am statring to believe that this is not driver related.
>
> I'm suspecting that the Vanos does not work on the 328, 'cause it would
> often idle rough. Yet from 2500 RPM upwards it pulls like a train, even
> when towing a 1 tonne caravan.
>
> Is there anything I can do to check whether the Vanos is working or not.
> Apart from the mechanism being broken, could there be a vacuum hose or
> something similar that is blocked that could cause the Vanos to malfunction?
> The car has only done 160,000km or 100,000 miles, full service history and
> is still like new otherwise.
>
> Thanks in advance for any advice
>
> MW
>
>
There is a solenoid that is actuated by the car's ECU. That solenoid
opens and closes a valve that routes oil pressure to the VANOS actuator,
which is the mecanical device that slides the helical gears on the
camshaft and cam sprocket. This is how the cam gets advanced,
There is an SI bulletin that applies to all M52 engines for this
problem. It is "SI 11 09 98, Subject: VANOS Valve Mechanically Jamming"
If you send me an email offline I will email you back a pdf copy of that
SI bulletin. You will have to un-mung my email address first. Oh and
let me know here if you've done that so I look out for your mail, as
that email account is a spam trap.
--
-Fred W >> Stay informed about: Vanos not working? |
|
| Back to top |
|
| |
External
Since: Dec 28, 2005
Posts: 386
|
(Msg. 8) Posted: Thu Nov 09, 2006 10:39 am
Post subject: Re: Vanos not working? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
MW de Jager wrote:
> Hi
>
> My 1995 328 has been very difficult to pull away with ever since I got it
> two years ago. You need to get the revs up to about 1500 to keep it from
> stalling. My wife had it stall with her 3 times yesterday before she
> managed to pull away and she drives a 1996 316 daily which she never stalls.
> So I am statring to believe that this is not driver related.
>
> I'm suspecting that the Vanos does not work on the 328, 'cause it would
> often idle rough. Yet from 2500 RPM upwards it pulls like a train, even
> when towing a 1 tonne caravan.
>
> Is there anything I can do to check whether the Vanos is working or not.
> Apart from the mechanism being broken, could there be a vacuum hose or
> something similar that is blocked that could cause the Vanos to malfunction?
> The car has only done 160,000km or 100,000 miles, full service history and
> is still like new otherwise.
>
> Thanks in advance for any advice
>
> MW
>
>
There is a solenoid that is actuated by the car's ECU. That solenoid
opens and closes a valve that routes oil pressure to the VANOS actuator,
which is the mecanical device that slides the helical gears on the
camshaft and cam sprocket. This is how the cam gets advanced,
There is an SI bulletin that applies to all M52 engines for this
problem. It is "SI 11 09 98, Subject: VANOS Valve Mechanically Jamming"
If you send me an email offline I will email you back a pdf copy of that
SI bulletin. You will have to un-mung my email address first. Oh and
let me know here if you've done that so I look out for your mail, as
that email account is a spam trap.
--
-Fred W >> Stay informed about: Vanos not working? |
|
| Back to top |
|
| |
External
Since: Dec 28, 2005
Posts: 386
|
(Msg. 9) Posted: Thu Nov 09, 2006 10:39 am
Post subject: Re: Vanos not working? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
MW de Jager wrote:
> Hi
>
> My 1995 328 has been very difficult to pull away with ever since I got it
> two years ago. You need to get the revs up to about 1500 to keep it from
> stalling. My wife had it stall with her 3 times yesterday before she
> managed to pull away and she drives a 1996 316 daily which she never stalls.
> So I am statring to believe that this is not driver related.
>
> I'm suspecting that the Vanos does not work on the 328, 'cause it would
> often idle rough. Yet from 2500 RPM upwards it pulls like a train, even
> when towing a 1 tonne caravan.
>
> Is there anything I can do to check whether the Vanos is working or not.
> Apart from the mechanism being broken, could there be a vacuum hose or
> something similar that is blocked that could cause the Vanos to malfunction?
> The car has only done 160,000km or 100,000 miles, full service history and
> is still like new otherwise.
>
> Thanks in advance for any advice
>
> MW
>
>
There is a solenoid that is actuated by the car's ECU. That solenoid
opens and closes a valve that routes oil pressure to the VANOS actuator,
which is the mecanical device that slides the helical gears on the
camshaft and cam sprocket. This is how the cam gets advanced,
There is an SI bulletin that applies to all M52 engines for this
problem. It is "SI 11 09 98, Subject: VANOS Valve Mechanically Jamming"
If you send me an email offline I will email you back a pdf copy of that
SI bulletin. You will have to un-mung my email address first. Oh and
let me know here if you've done that so I look out for your mail, as
that email account is a spam trap.
--
-Fred W >> Stay informed about: Vanos not working? |
|
| Back to top |
|
| |
External
Since: Dec 28, 2005
Posts: 386
|
(Msg. 10) Posted: Thu Nov 09, 2006 10:43 am
Post subject: Re: Vanos not working? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
yaofeng wrote:
>
> On Nov 9, 1:23 am, "MW de Jager" wrote:
>
>>Hi
>>
>>My 1995 328 has been very difficult to pull away with ever since I got it
>>two years ago. You need to get the revs up to about 1500 to keep it from
>>stalling. My wife had it stall with her 3 times yesterday before she
>>managed to pull away and she drives a 1996 316 daily which she never stalls.
>>So I am statring to believe that this is not driver related.
>>
>>I'm suspecting that the Vanos does not work on the 328, 'cause it would
>>often idle rough. Yet from 2500 RPM upwards it pulls like a train, even
>>when towing a 1 tonne caravan.
>>
>>Is there anything I can do to check whether the Vanos is working or not.
>>Apart from the mechanism being broken, could there be a vacuum hose or
>>something similar that is blocked that could cause the Vanos to malfunction?
>>The car has only done 160,000km or 100,000 miles, full service history and
>>is still like new otherwise.
>>
>>Thanks in advance for any advice
>>
>>MW
>
>
> The VANOS is actuated by the engine oil pressure. You'll have to pull
> the valva cover to see. My guess is it is working unless the valve
> train is all sludged up.
>
> As to why the car is stalling, someone else my offer a better opinion
> on it.
>
Actually, the oil pressure does the work, but there is a solenoid that
must engage and that sometimes sticks. If it does, the symptom is poor
driveability at low rpms.
--
-Fred W >> Stay informed about: Vanos not working? |
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External
Since: Dec 28, 2005
Posts: 386
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(Msg. 11) Posted: Thu Nov 09, 2006 10:43 am
Post subject: Re: Vanos not working? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
yaofeng wrote:
>
> On Nov 9, 1:23 am, "MW de Jager" wrote:
>
>>Hi
>>
>>My 1995 328 has been very difficult to pull away with ever since I got it
>>two years ago. You need to get the revs up to about 1500 to keep it from
>>stalling. My wife had it stall with her 3 times yesterday before she
>>managed to pull away and she drives a 1996 316 daily which she never stalls.
>>So I am statring to believe that this is not driver related.
>>
>>I'm suspecting that the Vanos does not work on the 328, 'cause it would
>>often idle rough. Yet from 2500 RPM upwards it pulls like a train, even
>>when towing a 1 tonne caravan.
>>
>>Is there anything I can do to check whether the Vanos is working or not.
>>Apart from the mechanism being broken, could there be a vacuum hose or
>>something similar that is blocked that could cause the Vanos to malfunction?
>>The car has only done 160,000km or 100,000 miles, full service history and
>>is still like new otherwise.
>>
>>Thanks in advance for any advice
>>
>>MW
>
>
> The VANOS is actuated by the engine oil pressure. You'll have to pull
> the valva cover to see. My guess is it is working unless the valve
> train is all sludged up.
>
> As to why the car is stalling, someone else my offer a better opinion
> on it.
>
Actually, the oil pressure does the work, but there is a solenoid that
must engage and that sometimes sticks. If it does, the symptom is poor
driveability at low rpms.
--
-Fred W >> Stay informed about: Vanos not working? |
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| Back to top |
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External
Since: Dec 28, 2005
Posts: 386
|
(Msg. 12) Posted: Thu Nov 09, 2006 10:43 am
Post subject: Re: Vanos not working? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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|
|
yaofeng wrote:
>
> On Nov 9, 1:23 am, "MW de Jager" wrote:
>
>>Hi
>>
>>My 1995 328 has been very difficult to pull away with ever since I got it
>>two years ago. You need to get the revs up to about 1500 to keep it from
>>stalling. My wife had it stall with her 3 times yesterday before she
>>managed to pull away and she drives a 1996 316 daily which she never stalls.
>>So I am statring to believe that this is not driver related.
>>
>>I'm suspecting that the Vanos does not work on the 328, 'cause it would
>>often idle rough. Yet from 2500 RPM upwards it pulls like a train, even
>>when towing a 1 tonne caravan.
>>
>>Is there anything I can do to check whether the Vanos is working or not.
>>Apart from the mechanism being broken, could there be a vacuum hose or
>>something similar that is blocked that could cause the Vanos to malfunction?
>>The car has only done 160,000km or 100,000 miles, full service history and
>>is still like new otherwise.
>>
>>Thanks in advance for any advice
>>
>>MW
>
>
> The VANOS is actuated by the engine oil pressure. You'll have to pull
> the valva cover to see. My guess is it is working unless the valve
> train is all sludged up.
>
> As to why the car is stalling, someone else my offer a better opinion
> on it.
>
Actually, the oil pressure does the work, but there is a solenoid that
must engage and that sometimes sticks. If it does, the symptom is poor
driveability at low rpms.
--
-Fred W >> Stay informed about: Vanos not working? |
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| Back to top |
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External
Since: Dec 28, 2005
Posts: 386
|
(Msg. 13) Posted: Thu Nov 09, 2006 10:43 am
Post subject: Re: Vanos not working? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
yaofeng wrote:
>
> On Nov 9, 1:23 am, "MW de Jager" wrote:
>
>>Hi
>>
>>My 1995 328 has been very difficult to pull away with ever since I got it
>>two years ago. You need to get the revs up to about 1500 to keep it from
>>stalling. My wife had it stall with her 3 times yesterday before she
>>managed to pull away and she drives a 1996 316 daily which she never stalls.
>>So I am statring to believe that this is not driver related.
>>
>>I'm suspecting that the Vanos does not work on the 328, 'cause it would
>>often idle rough. Yet from 2500 RPM upwards it pulls like a train, even
>>when towing a 1 tonne caravan.
>>
>>Is there anything I can do to check whether the Vanos is working or not.
>>Apart from the mechanism being broken, could there be a vacuum hose or
>>something similar that is blocked that could cause the Vanos to malfunction?
>>The car has only done 160,000km or 100,000 miles, full service history and
>>is still like new otherwise.
>>
>>Thanks in advance for any advice
>>
>>MW
>
>
> The VANOS is actuated by the engine oil pressure. You'll have to pull
> the valva cover to see. My guess is it is working unless the valve
> train is all sludged up.
>
> As to why the car is stalling, someone else my offer a better opinion
> on it.
>
Actually, the oil pressure does the work, but there is a solenoid that
must engage and that sometimes sticks. If it does, the symptom is poor
driveability at low rpms.
--
-Fred W >> Stay informed about: Vanos not working? |
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| Back to top |
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External
Since: Oct 24, 2006
Posts: 50
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(Msg. 14) Posted: Thu Nov 09, 2006 6:19 pm
Post subject: Re: Vanos not working? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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|
I would take it to a dealer and ask them to check the engine control unit
fault memory for you. It's a quick job and could save you a lot of time.
"MW de Jager" wrote in message
> Hi
>
> My 1995 328 has been very difficult to pull away with ever since I got it
> two years ago. You need to get the revs up to about 1500 to keep it from
> stalling. My wife had it stall with her 3 times yesterday before she
> managed to pull away and she drives a 1996 316 daily which she never
> stalls. So I am statring to believe that this is not driver related.
>
> I'm suspecting that the Vanos does not work on the 328, 'cause it would
> often idle rough. Yet from 2500 RPM upwards it pulls like a train, even
> when towing a 1 tonne caravan.
>
> Is there anything I can do to check whether the Vanos is working or not.
> Apart from the mechanism being broken, could there be a vacuum hose or
> something similar that is blocked that could cause the Vanos to
> malfunction? The car has only done 160,000km or 100,000 miles, full
> service history and is still like new otherwise.
>
> Thanks in advance for any advice
>
> MW
> >> Stay informed about: Vanos not working? |
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External
Since: Oct 24, 2006
Posts: 50
|
(Msg. 15) Posted: Thu Nov 09, 2006 6:19 pm
Post subject: Re: Vanos not working? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
I would take it to a dealer and ask them to check the engine control unit
fault memory for you. It's a quick job and could save you a lot of time.
"MW de Jager" wrote in message
> Hi
>
> My 1995 328 has been very difficult to pull away with ever since I got it
> two years ago. You need to get the revs up to about 1500 to keep it from
> stalling. My wife had it stall with her 3 times yesterday before she
> managed to pull away and she drives a 1996 316 daily which she never
> stalls. So I am statring to believe that this is not driver related.
>
> I'm suspecting that the Vanos does not work on the 328, 'cause it would
> often idle rough. Yet from 2500 RPM upwards it pulls like a train, even
> when towing a 1 tonne caravan.
>
> Is there anything I can do to check whether the Vanos is working or not.
> Apart from the mechanism being broken, could there be a vacuum hose or
> something similar that is blocked that could cause the Vanos to
> malfunction? The car has only done 160,000km or 100,000 miles, full
> service history and is still like new otherwise.
>
> Thanks in advance for any advice
>
> MW
> >> Stay informed about: Vanos not working? |
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